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Explorer Sport Trac
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Worn Timing Chain Cassettes May Cause Rattling Noise From Engine on Ford Explorer Sport Trac

Problem Description and Possible Solution

A rattling noise from the engine may indicate that the timing chain cassette is worn. Our technicians tell us that installing an updated cassette and timing chain tensioner should correct this concern.

Problem Data
RepairPal Verified
Average mileage: 139,032 (60,000–243,254)
Engines affected: 4.0L V6, 4.0L V6 SOHC, 4.6L V8
7 model years affected: 2001, 2002, 2003, 2004, more2005, 2007, 2008
42 people reported this problem
Comments
Viewing 1 - 19 of 19 comments
Im hearing a rattling noise under the truck and think that it may need a timing chain . I have 96000 miles on truck and its never been changed
I started it up and it ran for about ten min and then I went to put ot in drive and the engine shut off . I started it back then that's when I heard it clanking or banging of something under the hood up at the front of the motor.
Went through total of 3. yes 3. 2006 it caused a valve to set on top of piston. Got a rebuilt motor it ran 1 year. the only way shop would cover said problem, under warranty. was put on(all) mufflers. 3 catalytic mufflers, do to possible back pressure problems.so here I am with a great truck with bad engineers or money grabbing (?). So next, I hope that show will come that fixes problems with one loved truck. Put a mustang motor, trans & ecu. make my wife her ford adrenaline 2002. Problem FREE
Rattling noise coming from motor sounds more of a flutter then a knock Ford dealership said it was the timing but not I dug is a timing chain cassette
It's making a rattle noise & the timing belt was changed a couple days ago but it still makes the rattle noise
Lost power, jerks on acceleration, cel comes on and blinks, misdiagnosed, and ignored by Clay Maxey Ford here in town
Rattle noise got worse after driving awhile then oil pressure went low toke the oil pan off had alot of metal shaving in it what happen to it and it drives so good is the moter still good? Can we fixs it? And is the problem the oil pump
worn cassette, dealership wants over $3000 for repair but are recommending that i buy a new motor from them and they will install it for me for around $4500